---
_id: '11839'
abstract:
- lang: eng
text: It has been experimentally verified that sampling rate offsets (SROs) between
the input channels of an acoustic beamformer have a detrimental effect on the
achievable SNR gains. In this paper we derive an analytic model to study the impact
of SRO on the estimation of the spatial noise covariance matrix used in MVDR beamforming.
It is shown that a perfect compensation of the SRO is impossible if the noise
covariance matrix is estimated by time averaging, even if the SRO is perfectly
known. The SRO should therefore be compensated for prior to beamformer coefficient
estimation. We present a novel scheme where SRO compensation and beamforming closely
interact, saving some computational effort compared to separate SRO adjustment
followed by acoustic beamforming.
author:
- first_name: Joerg
full_name: Schmalenstroeer, Joerg
id: '460'
last_name: Schmalenstroeer
- first_name: Reinhold
full_name: Haeb-Umbach, Reinhold
id: '242'
last_name: Haeb-Umbach
citation:
ama: 'Schmalenstroeer J, Haeb-Umbach R. Insights into the Interplay of Sampling
Rate Offsets and MVDR Beamforming. In: ITG 2018, Oldenburg, Germany. ;
2018.'
apa: Schmalenstroeer, J., & Haeb-Umbach, R. (2018). Insights into the Interplay
of Sampling Rate Offsets and MVDR Beamforming. ITG 2018, Oldenburg, Germany.
bibtex: '@inproceedings{Schmalenstroeer_Haeb-Umbach_2018, title={Insights into the
Interplay of Sampling Rate Offsets and MVDR Beamforming}, booktitle={ITG 2018,
Oldenburg, Germany}, author={Schmalenstroeer, Joerg and Haeb-Umbach, Reinhold},
year={2018} }'
chicago: Schmalenstroeer, Joerg, and Reinhold Haeb-Umbach. “Insights into the Interplay
of Sampling Rate Offsets and MVDR Beamforming.” In ITG 2018, Oldenburg, Germany,
2018.
ieee: J. Schmalenstroeer and R. Haeb-Umbach, “Insights into the Interplay of Sampling
Rate Offsets and MVDR Beamforming,” 2018.
mla: Schmalenstroeer, Joerg, and Reinhold Haeb-Umbach. “Insights into the Interplay
of Sampling Rate Offsets and MVDR Beamforming.” ITG 2018, Oldenburg, Germany,
2018.
short: 'J. Schmalenstroeer, R. Haeb-Umbach, in: ITG 2018, Oldenburg, Germany, 2018.'
date_created: 2019-07-12T05:29:15Z
date_updated: 2023-10-26T08:12:22Z
department:
- _id: '54'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://groups.uni-paderborn.de/nt/pubs/2018/ITG_2018_Schmalenstroeer_Paper.pdf
oa: '1'
publication: ITG 2018, Oldenburg, Germany
quality_controlled: '1'
status: public
title: Insights into the Interplay of Sampling Rate Offsets and MVDR Beamforming
type: conference
user_id: '460'
year: '2018'
...